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GB/T 97.1-2002
Plain washers
Nom
d max
d min
dc max
dc min
h max
h min
Φ1.6
1.84
1.7
4
3.7
0.35
0.25
Φ2
2.34
2.2
5
4.7
0.35
0.25
Φ2.5
2.84
2.7
6
5.7
0.55
0.45
Φ3
3.38
3.2
7
6.64
0.55
0.45
Φ4
4.48
4.3
9
8.64
0.9
0.7
Φ5
5.48
5.3
10
9.64
1.1
0.9
Φ6
6.62
6.4
12
11.57
1.8
1.4
Φ8
8.62
8.4
16
15.57
1.8
1.4
Φ10
10.77
10.5
20
19.48
2.2
1.8
Φ12
13.27
13
24
23.48
2.7
2.3
Φ14
15.27
15
28
27.48
2.7
2.3
Φ16
17.27
17
30
29.48
3.3
2.7
Φ18
19.33
19
34
33.38
3.3
2.7
Φ20
21.33
21
37
36.38
3.3
2.7
Φ22
23.33
23
39
38.38
3.3
2.7
Φ24
25.33
25
44
43.38
4.3
3.7
Φ27
28.33
28
50
49.38
4.3
3.7
Φ30
31.39
31
56
55.26
4.3
3.7
Φ33
34.62
34
60
58.8
5.6
4.4
Φ36
37.62
37
66
64.8
5.6
4.4
Φ39
42.62
42
72
70.8
6.6
5.4
Φ42
45.62
45
78
76.8
9
7
Φ45
48.62
48
85
83.6
9
7
Φ48
52.74
52
92
90.6
9
7
Φ52
56.74
56
98
96.6
9
7
Φ56
62.74
62
105
103.6
11
9
Φ60
66.74
66
110
108.6
11
9
Φ64
70.74
70
115
113.6
11
9
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